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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06583791554746252 | 3.4199e-07 | |
| a | 2.563056030036434 | 3.7118e-08 | au |
| q | 2.394309763587481 | 8.554e-07 | au |
| i | 14.55509632073623 | 9.6465e-06 | deg |
| node | 6.011018493088416 | 2.0795e-05 | deg |
| peri | 176.2178997396491 | 5.1143e-05 | deg |
| M | 174.1745496596443 | 6.4756e-05 | deg |
| tp | 2458475.366828128218
(2018-Dec-22.86682813) | 0.0002616 | TDB |
| period | 1498.772021423091
4.10 | 3.2558e-05
8.914e-08 | d
yr |
| n | .2401966375501048 | 5.2177e-09 | deg/d |
| Q | 2.731802296485387 | 3.9562e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
17.13 |
|
n/a |
E2021B25 |
|
|
| 470673 (2008 SM209) Discovered 2008-Sep-28 by Astronomical Research Observatory at Charleston |
| Reference: | Last Updated: 2016-08-22 |
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